<template>
  <div class="app-container">
    课程列表

    <!--查询表单-->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-input v-model="courseQuery.title" placeholder="课程名称"/>
      </el-form-item>

      <el-form-item>
        <el-select v-model="courseQuery.status" clearable placeholder="课程状态">
          <el-option value="Normal" label="已发布"/>
          <el-option value="Draft" label="未发布"/>
        </el-select>
      </el-form-item>

      <el-button type="primary" icon="el-icon-search" @click="pageCondition">查询</el-button>
      <el-button type="default" @click="resetData()">清空</el-button>
    </el-form>

    <!-- 表格 -->
    <el-table
      :data="list"
      border
      fit
      highlight-current-row>

      <el-table-column
        label="序号"
        width="70"
        align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column prop="title" label="课程名称" width="220" />

      <el-table-column label="课程状态" width="80">
        <template slot-scope="scope">
          {{ scope.row.status==='Normal'?'已发布':'未发布' }}
        </template>
      </el-table-column>

      <el-table-column prop="lessonNum" label="课时数"  width="100"/>

      <el-table-column prop="gmtCreate" label="添加时间" width="160"/>

      <el-table-column prop="viewCount" label="浏览数量" width="100" />

      <el-table-column label="操作" width="250" align="center">
        <template slot-scope="scope">
          <!-- 编辑信息 -->
          <router-link :to="'/course/info/'+scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit" style="margin-bottom: 5px;">编辑课程基本信息</el-button>
          </router-link>
          <router-link :to="'/course/chapter/'+scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit" style="margin-bottom: 5px;">编辑课程大纲信息</el-button>
          </router-link>
          <el-button type="danger" size="mini" icon="el-icon-delete" style="margin-bottom: 5px;" @click="removeDataById(scope.row.id)">删除课程信息</el-button>
        </template>
      </el-table-column>
    </el-table>

  <!-- 分页 -->
    <el-pagination
      :current-page="page"
      :page-size="limit"
      :total="total"
      style="padding: 30px 0; text-align: center;"
      layout="total, prev, pager, next, jumper"
      @current-change="pageList"
    />

  </div>

 
</template>

<script>
import course from '@/api/edu/course'
export default {
  data() { //定义变量和初始值
        return {
          list:null,//查询之后接口返回集合
          page:1,//当前页
          limit:10,//每页记录数
          total:0,//总记录数
          courseQuery:{}, //条件封装对象
          courseId:''

        }
    },

    created(){
      this.pageList()
    },
    methods:{

       //删除课程信息 TODO
      removeDataById(courseId)
      {
         course.removeCourse(courseId).then(response=>
         {
          this.$message({
              type: 'success',
              message: '课程成功删除!'
          });
            //删除成功后刷新列表
            this.pageList()
         })
      },

      //分页查询，全部课程
      pageList()
      {
        course.pageList(this.page,this.limit).then(
          response=>{
            this.list=response.data.items.records
          }
        )
      },
      //条件查询
      pageCondition()
      {
        course.pageCondition(this.page,this.limit,this.courseQuery).then(
          response=>{
            
            this.list=response.data.records
            console.log(this.list)
          }
        )
      },
      //清空搜索框
      resetData()
      {
        this.courseQuery={}
      },
     
     

    }

}
</script>

<style>

</style>